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Help Im not 17. Aluminum (AI) adopts a face centered cubic unit cell with an edge length of 4.04A. a. Based on this information, calculate

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17. Aluminum (AI) adopts a face centered cubic unit cell with an edge length of 4.04A. a. Based on this information, calculate the atomic radius of an aluminum atom. (2pts) 42(4.04108)=1.42108 b. Based on this information, calculate the packing efficiency of the aluminum unit cell. (3pts) 34((1.42(0)8)3=1,201023 1.791022(1.201023)4=0.67100=67% 4Al6.02210231mol1motel26.8185=1.791022

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